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From "Pavel Tupitsyn (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-3608) QuerySqlFunction methods with Object type var args do not work
Date Tue, 09 Aug 2016 12:32:25 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-3608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavel Tupitsyn updated IGNITE-3608:
-----------------------------------
    Fix Version/s:     (was: 1.7)
                   1.8

> QuerySqlFunction methods with Object type var args do not work
> --------------------------------------------------------------
>
>                 Key: IGNITE-3608
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3608
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache, SQL
>    Affects Versions: 1.5.0.final, 1.6
>            Reporter: Edward Kaganovich
>              Labels: SQL, UDF
>             Fix For: 1.8
>
>
> We often use interactive sql consoles to query caches.  Several field values as well
as _key in caches are stored as objects.  To support queries by these fields we have registered
a generic UDF that should let us instantiate certain types:
> {code}  @QuerySqlFunction 
>     public static Object t(String clz, Object... ctorArgs) throws    Exception {
>             Class<?> c = Class.forName(keyClz); 
>             Class<?>[] argTypes = new Class[ctorArgs.length]; 
>             for (int i=0; i < ctorArgs.length; i++) { 
>                     argTypes[i] = ctorArgs[i].getClass(); 
>             } 
>             Constructor<?> ctor = c.getConstructor(argTypes); 
>             return ctor.newInstance(ctorArgs); 
>     }
> {code}
> Unfortunately Ignite fails to find and execute this function for the following SQL:
> {color:blue}select t('java.lang.String', 'key20'){color}{color:red} <- Fails{color}
> However, there is no problems with this function:
> {code}   @QuerySqlFunction 
>     public static Object t1(String clz, String... ctorArgs) throws Exception { 
>             return t(clz, ctorArgs);
>     }
> {code}
> {color:blue}select t1('java.lang.String', 'key20'){color}{color:green} <- Works as
expected{color}



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